ENUMERATION can not be empty
diff --git a/tests/tests-asn1c-compiler/109-bit-string-NP.asn1 b/tests/tests-asn1c-compiler/109-bit-string-NP.asn1
new file mode 100644
index 0000000..f6cef8e
--- /dev/null
+++ b/tests/tests-asn1c-compiler/109-bit-string-NP.asn1
@@ -0,0 +1,16 @@
+
+-- NP: Non-parseable
+
+-- iso.org.dod.internet.private.enterprise (1.3.6.1.4.1)
+-- .spelio.software.asn1c.test (9363.1.5.1)
+-- .109
+
+ModuleBitStringExtensibility
+ { iso org(3) dod(6) internet (1) private(4) enterprise(1)
+ spelio(9363) software(1) asn1c(5) test(1) 109 }
+ DEFINITIONS ::=
+BEGIN
+
+ T ::= BIT STRING { one(1), ... }
+
+END